221652048 has 40 divisors (see below), whose sum is σ = 573177600. Its totient is φ = 73809664.

The previous prime is 221652037. The next prime is 221652061. The reversal of 221652048 is 840256122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67468 + ... + 70676.

It is an arithmetic number, because the mean of its divisors is an integer number (14329440).

Almost surely, 2^221652048 is an apocalyptic number.

It is an amenable number.

221652048 is an abundant number, since it is smaller than the sum of its proper divisors (351525552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221652048 is a wasteful number, since it uses less digits than its factorization.

221652048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4659 (or 4653 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 221652048 is about 14887.9833422798. The cubic root of 221652048 is about 605.1883829268.

The spelling of 221652048 in words is "two hundred twenty-one million, six hundred fifty-two thousand, forty-eight".